The bug is in the vanilla code, but it is in a part that is not normally used. It is supposed to be there to prevent a crash if another part of vanilla makes a mistake, i.e. "If this object doesn't exist, create a default one and use that instead of crashing".
So currently this bug won't cause a crash but it might in the future if this line becomes necessary.
Jamie Peterson
The bug is in the vanilla code, but it is in a part that is not normally used. It is supposed to be there to prevent a crash if another part of vanilla makes a mistake, i.e. "If this object doesn't exist, create a default one and use that instead of crashing".
So currently this bug won't cause a crash but it might in the future if this line becomes necessary.